We present a hybrid continuous variable-discrete variable entanglement generation protocol using linear optics and homodyne measurements, capable of producing multiple high-fidelity Bell pairs per protocol iteration, with an approximate 0.5 success probability. The effectiveness of the protocol is determined by the squeezing strength. To increase the number of Bell pairs, approximately 3 dB of extra squeezing is needed for each additional Bell pair. The protocol also generates single Bell pairs with an approximate 0.75 probability for squeezing strengths ⪅15dB, achievable with current technology.
@article{arxiv.2410.18843,
title = {Multi-qubit entanglement generation with squeezed modes},
author = {Alexandru Macridin and Andrew Cameron and Cristian Pena and Si Xie and Raju Valivarthi and Panagiotis Spentzouris},
journal= {arXiv preprint arXiv:2410.18843},
year = {2025}
}